I just found the LR4YT at Half Price Books yesterday. Of course I didn't have time yet to read the book because I need to know what to eat. But in the bottom of how much you can eat for which race, it kept mentioning a category MM

Here is an abstract from Dr Greenfield in this forum (talking about cholesterol):

The MN subgroup can also be a factor in evaluating cholesterol and triglyceride levels: there is an association between MN group with environmentally induced (diet-linked) hyperlipidaemia, with NN more easily able to lower cholesterol levels through diet than MN (6), (7) (.

3) The man you know as your father is not your biological father. As far as I'm concerned, your "real father" is the one who raised you, regardless of whose sperm got your mother pregnant. This could be due to adoption, sperm donation, rape, alien abduction, an extra-marital(or pre-marital) affair, or hospital mix-up (swapping newborns.)

4) There was some kind of random genetic mutation when you were conceived. This is by far the least likely scenario, though still theoretically possible.

My dad was an AB my mom an A. Both children are A's. A being the dominant gene. I have a recessive O gene from my mother, which produced an O son. His father was a Bo. Ao + Bo = O. I also have a B son.